Extreme Networks BlackDiamond 12804 - Manual (Page 44)

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BlackDiamond 12800 Series Switches Hardware Installation Guide 44
NOTE
Like all electrical equipment, product lifetimes degrade with increased temperature. If possible, temperatures should
be kept at approximately 78
° F (25° C) or lower.
Humidity
To maximize equipment life, keep operating humidity between 50% and 70% relative humidity (non-
condensing) during typical operation. The equipment can operate between 10% and 95% relative
humidity (non-condensing) for short intervals.
BlackDiamond Family Chassis Spacing Requirements
Because of chassis-to-chassis heating, Extreme Networks recommends placing no more than three
chassis next to each other. In addition, Extreme Networks recommends the following general principles
for equipment placement:
● Leave a minimum of one empty 19-inch rack between two sets of three adjacent BlackDiamond
switches.
or
● Place patch panels between two sets of three adjacent BlackDiamond switches. A patch panel does
not require any power and does not generate any heat.
NOTE
Up to five adjacent switches will continue to function without safety concerns. However, product lifetime may
degrade with continued exposure to high temperatures in close proximity and long term reliability may be
compromised.
Airflow Requirements
To ensure proper airflow through a BlackDiamond 12800 series switch, refer to the following
recommendations:
● BlackDiamond 12800 series switches require a minimum of 1.5 inches (4 cm) around both the left
and right sides of the chassis from any cabinet wall or other obstruction for proper airflow.
● Air temperature measured approximately 1 inch (2.5 cm) from the fan inlet should be less than
104 °F (40 °C).
In the BlackDiamond 12800 series switches, airflow through the power supplies is independent of the
airflow through the modules as shown in
Figure 20 .